University of Applied Sciences Hochschule Augsburg THERMAL BUILDING
University of Applied Sciences Hochschule Augsburg THERMAL BUILDING SIMULATION WITH MAPLESIM Adhi Susilo and Martin Bauer E 2 D Faculty of Architecture and Civil Engineering Hochschule Augsburg, Germany
University of Applied Sciences Hochschule Augsburg E 2 D Outlines • • Abstract Introduction Modelica and Maple. Sim Basic model Room model and Heat gain Results Conclusions -Thermal Building Simulation with MAPLESIM - 2 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg E 2 D Abstract - This work is based on a systematic approach in construction process. - Maple. Sim is one of simulation tools that is able to work on both approaches; causal and acausal. - VDI 6020 is a benchmark to evaluate the model. -Thermal Building Simulation with MAPLESIM - 3 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Introduction • • E 2 D Formalizing Building Construction Process – Design process – Creating a system Systematic Engineering Design (7 steps in 4 phases) – Planning and task clarification – Conceptual design – Embodiment design – Detail design -Thermal Building Simulation with MAPLESIM - 4 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Design process Analyzing Synthesizing E 2 D -Thermal Building Simulation with MAPLESIM - 5 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Systematic Engineering Design Ref. : Pahl / Beitz – VDI 2221 E 2 D -Thermal Building Simulation with MAPLESIM - 6 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Phases of Contruction Construction Requirements Function elements Generalized construction devices Construction devices Single components E 2 D -Thermal Building Simulation with MAPLESIM - 7 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Function elements Roof Lead water Insulate thermal energy o o o Wall Insulate th. energy Ventilate air o o o E 2 D -Thermal Building Simulation with MAPLESIM - 8 System boundary Bau. SIM 2010
Hochschule Augsburg General construction devices University of Applied Sciences Lead water Ventilate air Lead water Insulate energy Lead water Insulate energy Principle graph monopitch roof E 2 D -Thermal Building Simulation with MAPLESIM - Ventilate air Lead water Insulate energy External Wall & Window System boundary 9 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Construction devices Lead water o o o Roofing layer Lead water o Underlayment layer (Wood) sheathing l. Ventilate air A wall (three layers) model Insulate thermal energy Ventilation layer Insulation layer Ventilate air Insulate thermal energy Vapour Barriers layer Siding layer (Roof) area System boundary E 2 D -Thermal Building Simulation with MAPLESIM - 10 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Modelica and Maple. Sim - The equation based language, or called an acausal system. - There are many basic components in its library, including electrical, mechanical, and thermal devices; sensors and sources; and signal blocks – Example of thermal library components • Boundary Condition Controls – Fixed Temperature • Heat Transfer Components – Body Radiation – Convection – Heat Capacitor – Thermal Conductor – Prescribed Heat Flow E 2 D -Thermal Building Simulation with MAPLESIM - 11 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Basic Model We take VDI 6020 Example 1 as a bench mark External Wall & Window E 2 D -Thermal Building Simulation with MAPLESIM - 12 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Material properties of the Room type S (VDI Richtlinie 6020, 2001) E 2 D -Thermal Building Simulation with MAPLESIM - 13 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Building element A typical layer A window with air gap is simulated by radiation and convection component E 2 D -Thermal Building Simulation with MAPLESIM - 14 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Room Model and Heat Gain E 2 D -Thermal Building Simulation with MAPLESIM - 15 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Internal Gain (An example of the internal gain within ten days) E 2 D -Thermal Building Simulation with MAPLESIM - 16 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Results E 2 D -Thermal Building Simulation with MAPLESIM - 17 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Result from Maple. Sim 4 E 2 D -Thermal Building Simulation with MAPLESIM - 18 Bau. SIM 2010
University of Applied Sciences Hochschule Augsburg Conclusions – The simulation model can be prepared like a systematic approach in construction process. – A complex system is broken down into basic components. – Then, rearranging and synthesizing the basic component to simulate the overall system. – Though the gradient of the steady state of both results is different, but both simulations reach steady state at around day 60. Further Work – Before bugs fixed, we have to create a smooth input with combination of other functions, for example a pulse function is substituted by combining sine function and on-off function. – Extending this model to accommodate a multizone building. E 2 D -Thermal Building Simulation with MAPLESIM - 19 Bau. SIM 2010
This work was supported by University of Applied Sciences Hochschule Augsburg Acknowledgement Urlaubskasse des Bayerischen Baugewerbe e. V. Thank you E 2 D -Thermal Building Simulation with MAPLESIM - 20 Bau. SIM 2010
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